Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
[deliverable/linux.git] / arch / arm / Kconfig
CommitLineData
1da177e4
LT
1config ARM
2 bool
3 default y
b1b3f49c
RK
4 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
5 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
7563bbf8 6 select ARCH_HAVE_CUSTOM_GPIO_H
3d06770e 7 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
b1b3f49c 8 select ARCH_WANT_IPC_PARSE_VERSION
ee951c63 9 select BUILDTIME_EXTABLE_SORT if MMU
b1b3f49c 10 select CPU_PM if (SUSPEND || CPU_IDLE)
39b175a0 11 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
a41297a0 12 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
b1b3f49c
RK
13 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
14 select GENERIC_IRQ_PROBE
15 select GENERIC_IRQ_SHOW
b1b3f49c
RK
16 select GENERIC_PCI_IOMAP
17 select GENERIC_SMP_IDLE_THREAD
f7b861b7 18 select GENERIC_IDLE_POLL_SETUP
b1b3f49c
RK
19 select GENERIC_STRNCPY_FROM_USER
20 select GENERIC_STRNLEN_USER
21 select HARDIRQS_SW_RESEND
22 select HAVE_AOUT
09f05d85 23 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
5cbad0eb 24 select HAVE_ARCH_KGDB
4095ccc3 25 select HAVE_ARCH_SECCOMP_FILTER
0693bf68 26 select HAVE_ARCH_TRACEHOOK
b1b3f49c
RK
27 select HAVE_BPF_JIT
28 select HAVE_C_RECORDMCOUNT
29 select HAVE_DEBUG_KMEMLEAK
30 select HAVE_DMA_API_DEBUG
31 select HAVE_DMA_ATTRS
32 select HAVE_DMA_CONTIGUOUS if MMU
80be7a7f 33 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
b1b3f49c 34 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
0e341af8 35 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
b1b3f49c 36 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1fe53268 37 select HAVE_GENERIC_DMA_COHERENT
b1b3f49c
RK
38 select HAVE_GENERIC_HARDIRQS
39 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
40 select HAVE_IDE if PCI || ISA || PCMCIA
e7db7b42 41 select HAVE_KERNEL_GZIP
6e8699f7 42 select HAVE_KERNEL_LZMA
b1b3f49c 43 select HAVE_KERNEL_LZO
a7f464f3 44 select HAVE_KERNEL_XZ
b1b3f49c
RK
45 select HAVE_KPROBES if !XIP_KERNEL
46 select HAVE_KRETPROBES if (HAVE_KPROBES)
47 select HAVE_MEMBLOCK
48 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
7ada189f 49 select HAVE_PERF_EVENTS
e513f8bf 50 select HAVE_REGS_AND_STACK_ACCESS_API
b1b3f49c 51 select HAVE_SYSCALL_TRACEPOINTS
af1839eb 52 select HAVE_UID16
3d92a71a 53 select KTIME_SCALAR
b1b3f49c
RK
54 select PERF_USE_VMALLOC
55 select RTC_LIB
56 select SYS_SUPPORTS_APM_EMULATION
786d35d4
DH
57 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
58 select MODULES_USE_ELF_REL
38a61b6b 59 select CLONE_BACKWARDS
b68fec24 60 select OLD_SIGSUSPEND3
50bcb7e4 61 select OLD_SIGACTION
1da177e4
LT
62 help
63 The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a 64 licensed by ARM Ltd and targeted at embedded applications and
1da177e4 65 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a 66 manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4
LT
67 Europe. There is an ARM Linux project with a web page at
68 <http://www.arm.linux.org.uk/>.
69
74facffe
RK
70config ARM_HAS_SG_CHAIN
71 bool
72
4ce63fcd
MS
73config NEED_SG_DMA_LENGTH
74 bool
75
76config ARM_DMA_USE_IOMMU
4ce63fcd 77 bool
b1b3f49c
RK
78 select ARM_HAS_SG_CHAIN
79 select NEED_SG_DMA_LENGTH
4ce63fcd 80
60460abf
SWK
81if ARM_DMA_USE_IOMMU
82
83config ARM_DMA_IOMMU_ALIGNMENT
84 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
85 range 4 9
86 default 8
87 help
88 DMA mapping framework by default aligns all buffers to the smallest
89 PAGE_SIZE order which is greater than or equal to the requested buffer
90 size. This works well for buffers up to a few hundreds kilobytes, but
91 for larger buffers it just a waste of address space. Drivers which has
92 relatively small addressing window (like 64Mib) might run out of
93 virtual space with just a few allocations.
94
95 With this parameter you can specify the maximum PAGE_SIZE order for
96 DMA IOMMU buffers. Larger buffers will be aligned only to this
97 specified order. The order is expressed as a power of two multiplied
98 by the PAGE_SIZE.
99
100endif
101
1a189b97
RK
102config HAVE_PWM
103 bool
104
0b05da72
HUK
105config MIGHT_HAVE_PCI
106 bool
107
75e7153a
RB
108config SYS_SUPPORTS_APM_EMULATION
109 bool
110
0a938b97
DB
111config GENERIC_GPIO
112 bool
0a938b97 113
bc581770
LW
114config HAVE_TCM
115 bool
116 select GENERIC_ALLOCATOR
117
e119bfff
RK
118config HAVE_PROC_CPU
119 bool
120
5ea81769
AV
121config NO_IOPORT
122 bool
5ea81769 123
1da177e4
LT
124config EISA
125 bool
126 ---help---
127 The Extended Industry Standard Architecture (EISA) bus was
128 developed as an open alternative to the IBM MicroChannel bus.
129
130 The EISA bus provided some of the features of the IBM MicroChannel
131 bus while maintaining backward compatibility with cards made for
132 the older ISA bus. The EISA bus saw limited use between 1988 and
133 1995 when it was made obsolete by the PCI bus.
134
135 Say Y here if you are building a kernel for an EISA-based machine.
136
137 Otherwise, say N.
138
139config SBUS
140 bool
141
f16fb1ec
RK
142config STACKTRACE_SUPPORT
143 bool
144 default y
145
f76e9154
NP
146config HAVE_LATENCYTOP_SUPPORT
147 bool
148 depends on !SMP
149 default y
150
f16fb1ec
RK
151config LOCKDEP_SUPPORT
152 bool
153 default y
154
7ad1bcb2
RK
155config TRACE_IRQFLAGS_SUPPORT
156 bool
157 default y
158
1da177e4
LT
159config RWSEM_GENERIC_SPINLOCK
160 bool
161 default y
162
163config RWSEM_XCHGADD_ALGORITHM
164 bool
165
f0d1b0b3
DH
166config ARCH_HAS_ILOG2_U32
167 bool
f0d1b0b3
DH
168
169config ARCH_HAS_ILOG2_U64
170 bool
f0d1b0b3 171
89c52ed4
BD
172config ARCH_HAS_CPUFREQ
173 bool
174 help
175 Internal node to signify that the ARCH has CPUFREQ support
176 and that the relevant menu configurations are displayed for
177 it.
178
b89c3b16
AM
179config GENERIC_HWEIGHT
180 bool
181 default y
182
1da177e4
LT
183config GENERIC_CALIBRATE_DELAY
184 bool
185 default y
186
a08b6b79
Z
187config ARCH_MAY_HAVE_PC_FDC
188 bool
189
5ac6da66
CL
190config ZONE_DMA
191 bool
5ac6da66 192
ccd7ab7f
FT
193config NEED_DMA_MAP_STATE
194 def_bool y
195
58af4a24
RH
196config ARCH_HAS_DMA_SET_COHERENT_MASK
197 bool
198
1da177e4
LT
199config GENERIC_ISA_DMA
200 bool
201
1da177e4
LT
202config FIQ
203 bool
204
13a5045d
RH
205config NEED_RET_TO_USER
206 bool
207
034d2f5a
AV
208config ARCH_MTD_XIP
209 bool
210
c760fc19
HC
211config VECTORS_BASE
212 hex
6afd6fae 213 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
c760fc19
HC
214 default DRAM_BASE if REMAP_VECTORS_TO_RAM
215 default 0x00000000
216 help
217 The base address of exception vectors.
218
dc21af99 219config ARM_PATCH_PHYS_VIRT
c1becedc
RK
220 bool "Patch physical to virtual translations at runtime" if EMBEDDED
221 default y
b511d75d 222 depends on !XIP_KERNEL && MMU
dc21af99
RK
223 depends on !ARCH_REALVIEW || !SPARSEMEM
224 help
111e9a5c
RK
225 Patch phys-to-virt and virt-to-phys translation functions at
226 boot and module load time according to the position of the
227 kernel in system memory.
dc21af99 228
111e9a5c 229 This can only be used with non-XIP MMU kernels where the base
daece596 230 of physical memory is at a 16MB boundary.
dc21af99 231
c1becedc
RK
232 Only disable this option if you know that you do not require
233 this feature (eg, building a kernel for a single machine) and
234 you need to shrink the kernel to the minimal size.
dc21af99 235
01464226
RH
236config NEED_MACH_GPIO_H
237 bool
238 help
239 Select this when mach/gpio.h is required to provide special
240 definitions for this platform. The need for mach/gpio.h should
241 be avoided when possible.
242
c334bc15
RH
243config NEED_MACH_IO_H
244 bool
245 help
246 Select this when mach/io.h is required to provide special
247 definitions for this platform. The need for mach/io.h should
248 be avoided when possible.
249
0cdc8b92 250config NEED_MACH_MEMORY_H
1b9f95f8
NP
251 bool
252 help
0cdc8b92
NP
253 Select this when mach/memory.h is required to provide special
254 definitions for this platform. The need for mach/memory.h should
255 be avoided when possible.
dc21af99 256
1b9f95f8 257config PHYS_OFFSET
974c0724 258 hex "Physical address of main memory" if MMU
0cdc8b92 259 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
974c0724 260 default DRAM_BASE if !MMU
111e9a5c 261 help
1b9f95f8
NP
262 Please provide the physical address corresponding to the
263 location of main memory in your system.
cada3c08 264
87e040b6
SG
265config GENERIC_BUG
266 def_bool y
267 depends on BUG
268
1da177e4
LT
269source "init/Kconfig"
270
dc52ddc0
MH
271source "kernel/Kconfig.freezer"
272
1da177e4
LT
273menu "System Type"
274
3c427975
HC
275config MMU
276 bool "MMU-based Paged Memory Management Support"
277 default y
278 help
279 Select if you want MMU-based virtualised addressing space
280 support by paged memory management. If unsure, say 'Y'.
281
ccf50e23
RK
282#
283# The "ARM system type" choice list is ordered alphabetically by option
284# text. Please add new entries in the option alphabetic order.
285#
1da177e4
LT
286choice
287 prompt "ARM system type"
1420b22b
AB
288 default ARCH_VERSATILE if !MMU
289 default ARCH_MULTIPLATFORM if MMU
1da177e4 290
387798b3
RH
291config ARCH_MULTIPLATFORM
292 bool "Allow multiple platforms to be selected"
b1b3f49c 293 depends on MMU
387798b3
RH
294 select ARM_PATCH_PHYS_VIRT
295 select AUTO_ZRELADDR
66314223 296 select COMMON_CLK
387798b3 297 select MULTI_IRQ_HANDLER
66314223
DN
298 select SPARSE_IRQ
299 select USE_OF
66314223 300
4af6fee1
DS
301config ARCH_INTEGRATOR
302 bool "ARM Ltd. Integrator family"
89c52ed4 303 select ARCH_HAS_CPUFREQ
b1b3f49c 304 select ARM_AMBA
a613163d 305 select COMMON_CLK
f9a6aa43 306 select COMMON_CLK_VERSATILE
b1b3f49c 307 select GENERIC_CLOCKEVENTS
9904f793 308 select HAVE_TCM
c5a0adb5 309 select ICST
b1b3f49c
RK
310 select MULTI_IRQ_HANDLER
311 select NEED_MACH_MEMORY_H
f4b8b319 312 select PLAT_VERSATILE
695436e3 313 select SPARSE_IRQ
2389d501 314 select VERSATILE_FPGA_IRQ
4af6fee1
DS
315 help
316 Support for ARM's Integrator platform.
317
318config ARCH_REALVIEW
319 bool "ARM Ltd. RealView family"
b1b3f49c 320 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 321 select ARM_AMBA
b1b3f49c 322 select ARM_TIMER_SP804
f9a6aa43
LW
323 select COMMON_CLK
324 select COMMON_CLK_VERSATILE
ae30ceac 325 select GENERIC_CLOCKEVENTS
b56ba8aa 326 select GPIO_PL061 if GPIOLIB
b1b3f49c 327 select ICST
0cdc8b92 328 select NEED_MACH_MEMORY_H
b1b3f49c
RK
329 select PLAT_VERSATILE
330 select PLAT_VERSATILE_CLCD
4af6fee1
DS
331 help
332 This enables support for ARM Ltd RealView boards.
333
334config ARCH_VERSATILE
335 bool "ARM Ltd. Versatile family"
b1b3f49c 336 select ARCH_WANT_OPTIONAL_GPIOLIB
4af6fee1 337 select ARM_AMBA
b1b3f49c 338 select ARM_TIMER_SP804
4af6fee1 339 select ARM_VIC
6d803ba7 340 select CLKDEV_LOOKUP
b1b3f49c 341 select GENERIC_CLOCKEVENTS
aa3831cf 342 select HAVE_MACH_CLKDEV
c5a0adb5 343 select ICST
f4b8b319 344 select PLAT_VERSATILE
3414ba8c 345 select PLAT_VERSATILE_CLCD
b1b3f49c 346 select PLAT_VERSATILE_CLOCK
2389d501 347 select VERSATILE_FPGA_IRQ
4af6fee1
DS
348 help
349 This enables support for ARM Ltd Versatile board.
350
8fc5ffa0
AV
351config ARCH_AT91
352 bool "Atmel AT91"
f373e8c0 353 select ARCH_REQUIRE_GPIOLIB
bd602995 354 select CLKDEV_LOOKUP
b1b3f49c 355 select HAVE_CLK
e261501d 356 select IRQ_DOMAIN
01464226 357 select NEED_MACH_GPIO_H
1ac02d79 358 select NEED_MACH_IO_H if PCCARD
6732ae5c
JCPV
359 select PINCTRL
360 select PINCTRL_AT91 if USE_OF
4af6fee1 361 help
929e994f
NF
362 This enables support for systems based on Atmel
363 AT91RM9200 and AT91SAM9* processors.
4af6fee1 364
93e22567
RK
365config ARCH_CLPS711X
366 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
a3b8d4a5 367 select ARCH_REQUIRE_GPIOLIB
ea7d1bc9 368 select AUTO_ZRELADDR
93e22567
RK
369 select CLKDEV_LOOKUP
370 select COMMON_CLK
371 select CPU_ARM720T
4a8355c4 372 select GENERIC_CLOCKEVENTS
99f04c8f 373 select MULTI_IRQ_HANDLER
93e22567 374 select NEED_MACH_MEMORY_H
0d8be81c 375 select SPARSE_IRQ
93e22567
RK
376 help
377 Support for Cirrus Logic 711x/721x/731x based boards.
378
788c9700
RK
379config ARCH_GEMINI
380 bool "Cortina Systems Gemini"
788c9700 381 select ARCH_REQUIRE_GPIOLIB
5cfc8ee0 382 select ARCH_USES_GETTIMEOFFSET
662146b1 383 select NEED_MACH_GPIO_H
b1b3f49c 384 select CPU_FA526
788c9700
RK
385 help
386 Support for the Cortina Systems Gemini family SoCs
387
1da177e4
LT
388config ARCH_EBSA110
389 bool "EBSA-110"
b1b3f49c 390 select ARCH_USES_GETTIMEOFFSET
c750815e 391 select CPU_SA110
f7e68bbf 392 select ISA
c334bc15 393 select NEED_MACH_IO_H
0cdc8b92 394 select NEED_MACH_MEMORY_H
b1b3f49c 395 select NO_IOPORT
1da177e4
LT
396 help
397 This is an evaluation board for the StrongARM processor available
f6c8965a 398 from Digital. It has limited hardware on-board, including an
1da177e4
LT
399 Ethernet interface, two PCMCIA sockets, two serial ports and a
400 parallel port.
401
e7736d47
LB
402config ARCH_EP93XX
403 bool "EP93xx-based"
b1b3f49c
RK
404 select ARCH_HAS_HOLES_MEMORYMODEL
405 select ARCH_REQUIRE_GPIOLIB
406 select ARCH_USES_GETTIMEOFFSET
e7736d47
LB
407 select ARM_AMBA
408 select ARM_VIC
6d803ba7 409 select CLKDEV_LOOKUP
b1b3f49c 410 select CPU_ARM920T
5725aeae 411 select NEED_MACH_MEMORY_H
e7736d47
LB
412 help
413 This enables support for the Cirrus EP93xx series of CPUs.
414
1da177e4
LT
415config ARCH_FOOTBRIDGE
416 bool "FootBridge"
c750815e 417 select CPU_SA110
1da177e4 418 select FOOTBRIDGE
4e8d7637 419 select GENERIC_CLOCKEVENTS
d0ee9f40 420 select HAVE_IDE
8ef6e620 421 select NEED_MACH_IO_H if !MMU
0cdc8b92 422 select NEED_MACH_MEMORY_H
f999b8bd
MM
423 help
424 Support for systems based on the DC21285 companion chip
425 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4 426
4af6fee1
DS
427config ARCH_NETX
428 bool "Hilscher NetX based"
b1b3f49c 429 select ARM_VIC
234b6ced 430 select CLKSRC_MMIO
c750815e 431 select CPU_ARM926T
2fcfe6b8 432 select GENERIC_CLOCKEVENTS
f999b8bd 433 help
4af6fee1
DS
434 This enables support for systems based on the Hilscher NetX Soc
435
3b938be6
RK
436config ARCH_IOP13XX
437 bool "IOP13xx-based"
438 depends on MMU
3b938be6 439 select ARCH_SUPPORTS_MSI
b1b3f49c 440 select CPU_XSC3
0cdc8b92 441 select NEED_MACH_MEMORY_H
13a5045d 442 select NEED_RET_TO_USER
b1b3f49c
RK
443 select PCI
444 select PLAT_IOP
445 select VMSPLIT_1G
3b938be6
RK
446 help
447 Support for Intel's IOP13XX (XScale) family of processors.
448
3f7e5815
LB
449config ARCH_IOP32X
450 bool "IOP32x-based"
a4f7e763 451 depends on MMU
b1b3f49c 452 select ARCH_REQUIRE_GPIOLIB
c750815e 453 select CPU_XSCALE
01464226 454 select NEED_MACH_GPIO_H
13a5045d 455 select NEED_RET_TO_USER
f7e68bbf 456 select PCI
b1b3f49c 457 select PLAT_IOP
f999b8bd 458 help
3f7e5815
LB
459 Support for Intel's 80219 and IOP32X (XScale) family of
460 processors.
461
462config ARCH_IOP33X
463 bool "IOP33x-based"
464 depends on MMU
b1b3f49c 465 select ARCH_REQUIRE_GPIOLIB
c750815e 466 select CPU_XSCALE
01464226 467 select NEED_MACH_GPIO_H
13a5045d 468 select NEED_RET_TO_USER
3f7e5815 469 select PCI
b1b3f49c 470 select PLAT_IOP
3f7e5815
LB
471 help
472 Support for Intel's IOP33X (XScale) family of processors.
1da177e4 473
3b938be6
RK
474config ARCH_IXP4XX
475 bool "IXP4xx-based"
a4f7e763 476 depends on MMU
58af4a24 477 select ARCH_HAS_DMA_SET_COHERENT_MASK
b1b3f49c 478 select ARCH_REQUIRE_GPIOLIB
234b6ced 479 select CLKSRC_MMIO
c750815e 480 select CPU_XSCALE
b1b3f49c 481 select DMABOUNCE if PCI
3b938be6 482 select GENERIC_CLOCKEVENTS
0b05da72 483 select MIGHT_HAVE_PCI
c334bc15 484 select NEED_MACH_IO_H
9296d94d
FF
485 select USB_EHCI_BIG_ENDIAN_MMIO
486 select USB_EHCI_BIG_ENDIAN_DESC
c4713074 487 help
3b938be6 488 Support for Intel's IXP4XX (XScale) family of processors.
c4713074 489
edabd38e
SB
490config ARCH_DOVE
491 bool "Marvell Dove"
edabd38e 492 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 493 select CPU_V7
edabd38e 494 select GENERIC_CLOCKEVENTS
0f81bd43 495 select MIGHT_HAVE_PCI
9139acd1
SH
496 select PINCTRL
497 select PINCTRL_DOVE
abcda1dc 498 select PLAT_ORION_LEGACY
0f81bd43 499 select USB_ARCH_HAS_EHCI
edabd38e
SB
500 help
501 Support for the Marvell Dove SoC 88AP510
502
651c74c7
SB
503config ARCH_KIRKWOOD
504 bool "Marvell Kirkwood"
a8865655 505 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 506 select CPU_FEROCEON
651c74c7 507 select GENERIC_CLOCKEVENTS
b1b3f49c 508 select PCI
1dc831bf 509 select PCI_QUIRKS
f9e75922
AL
510 select PINCTRL
511 select PINCTRL_KIRKWOOD
abcda1dc 512 select PLAT_ORION_LEGACY
651c74c7
SB
513 help
514 Support for the following Marvell Kirkwood series SoCs:
515 88F6180, 88F6192 and 88F6281.
516
794d15b2
SS
517config ARCH_MV78XX0
518 bool "Marvell MV78xx0"
a8865655 519 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 520 select CPU_FEROCEON
794d15b2 521 select GENERIC_CLOCKEVENTS
b1b3f49c 522 select PCI
abcda1dc 523 select PLAT_ORION_LEGACY
794d15b2
SS
524 help
525 Support for the following Marvell MV78xx0 series SoCs:
526 MV781x0, MV782x0.
527
9dd0b194 528config ARCH_ORION5X
585cf175
TP
529 bool "Marvell Orion"
530 depends on MMU
a8865655 531 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 532 select CPU_FEROCEON
51cbff1d 533 select GENERIC_CLOCKEVENTS
b1b3f49c 534 select PCI
abcda1dc 535 select PLAT_ORION_LEGACY
585cf175 536 help
9dd0b194 537 Support for the following Marvell Orion 5x series SoCs:
d2b2a6bb 538 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
d323ade1 539 Orion-2 (5281), Orion-1-90 (6183).
585cf175 540
788c9700 541config ARCH_MMP
2f7e8fae 542 bool "Marvell PXA168/910/MMP2"
788c9700 543 depends on MMU
788c9700 544 select ARCH_REQUIRE_GPIOLIB
6d803ba7 545 select CLKDEV_LOOKUP
b1b3f49c 546 select GENERIC_ALLOCATOR
788c9700 547 select GENERIC_CLOCKEVENTS
157d2644 548 select GPIO_PXA
c24b3114 549 select IRQ_DOMAIN
b1b3f49c 550 select NEED_MACH_GPIO_H
7c8f86a4 551 select PINCTRL
788c9700 552 select PLAT_PXA
0bd86961 553 select SPARSE_IRQ
788c9700 554 help
2f7e8fae 555 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
788c9700
RK
556
557config ARCH_KS8695
558 bool "Micrel/Kendin KS8695"
98830bc9 559 select ARCH_REQUIRE_GPIOLIB
c7e783d6 560 select CLKSRC_MMIO
b1b3f49c 561 select CPU_ARM922T
c7e783d6 562 select GENERIC_CLOCKEVENTS
b1b3f49c 563 select NEED_MACH_MEMORY_H
788c9700
RK
564 help
565 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
566 System-on-Chip devices.
567
788c9700
RK
568config ARCH_W90X900
569 bool "Nuvoton W90X900 CPU"
c52d3d68 570 select ARCH_REQUIRE_GPIOLIB
6d803ba7 571 select CLKDEV_LOOKUP
6fa5d5f7 572 select CLKSRC_MMIO
b1b3f49c 573 select CPU_ARM926T
58b5369e 574 select GENERIC_CLOCKEVENTS
788c9700 575 help
a8bc4ead 576 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
577 At present, the w90x900 has been renamed nuc900, regarding
578 the ARM series product line, you can login the following
579 link address to know more.
580
581 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
582 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
788c9700 583
93e22567
RK
584config ARCH_LPC32XX
585 bool "NXP LPC32XX"
586 select ARCH_REQUIRE_GPIOLIB
587 select ARM_AMBA
588 select CLKDEV_LOOKUP
589 select CLKSRC_MMIO
590 select CPU_ARM926T
591 select GENERIC_CLOCKEVENTS
592 select HAVE_IDE
593 select HAVE_PWM
594 select USB_ARCH_HAS_OHCI
595 select USE_OF
596 help
597 Support for the NXP LPC32XX family of processors
598
1da177e4 599config ARCH_PXA
2c8086a5 600 bool "PXA2xx/PXA3xx-based"
a4f7e763 601 depends on MMU
89c52ed4 602 select ARCH_HAS_CPUFREQ
b1b3f49c
RK
603 select ARCH_MTD_XIP
604 select ARCH_REQUIRE_GPIOLIB
605 select ARM_CPU_SUSPEND if PM
606 select AUTO_ZRELADDR
6d803ba7 607 select CLKDEV_LOOKUP
234b6ced 608 select CLKSRC_MMIO
981d0f39 609 select GENERIC_CLOCKEVENTS
157d2644 610 select GPIO_PXA
d0ee9f40 611 select HAVE_IDE
b1b3f49c 612 select MULTI_IRQ_HANDLER
01464226 613 select NEED_MACH_GPIO_H
b1b3f49c
RK
614 select PLAT_PXA
615 select SPARSE_IRQ
f999b8bd 616 help
2c8086a5 617 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
1da177e4 618
788c9700
RK
619config ARCH_MSM
620 bool "Qualcomm MSM"
923a081c 621 select ARCH_REQUIRE_GPIOLIB
bd32344a 622 select CLKDEV_LOOKUP
b1b3f49c
RK
623 select GENERIC_CLOCKEVENTS
624 select HAVE_CLK
49cbe786 625 help
4b53eb4f
DW
626 Support for Qualcomm MSM/QSD based systems. This runs on the
627 apps processor of the MSM/QSD and depends on a shared memory
628 interface to the modem processor which runs the baseband
629 stack and controls some vital subsystems
630 (clock and power control, etc).
49cbe786 631
c793c1b0 632config ARCH_SHMOBILE
6d72ad35 633 bool "Renesas SH-Mobile / R-Mobile"
5e93c6b4 634 select CLKDEV_LOOKUP
b1b3f49c 635 select GENERIC_CLOCKEVENTS
4c3ffffd
SB
636 select HAVE_ARM_SCU if SMP
637 select HAVE_ARM_TWD if LOCAL_TIMERS
b1b3f49c 638 select HAVE_CLK
aa3831cf 639 select HAVE_MACH_CLKDEV
3b55658a 640 select HAVE_SMP
ce5ea9f3 641 select MIGHT_HAVE_CACHE_L2X0
60f1435c 642 select MULTI_IRQ_HANDLER
0cdc8b92 643 select NEED_MACH_MEMORY_H
b1b3f49c 644 select NO_IOPORT
a47029c1 645 select PINCTRL
b1b3f49c
RK
646 select PM_GENERIC_DOMAINS if PM
647 select SPARSE_IRQ
c793c1b0 648 help
6d72ad35 649 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
c793c1b0 650
1da177e4
LT
651config ARCH_RPC
652 bool "RiscPC"
653 select ARCH_ACORN
a08b6b79 654 select ARCH_MAY_HAVE_PC_FDC
07f841b7 655 select ARCH_SPARSEMEM_ENABLE
5cfc8ee0 656 select ARCH_USES_GETTIMEOFFSET
b1b3f49c 657 select FIQ
d0ee9f40 658 select HAVE_IDE
b1b3f49c
RK
659 select HAVE_PATA_PLATFORM
660 select ISA_DMA_API
c334bc15 661 select NEED_MACH_IO_H
0cdc8b92 662 select NEED_MACH_MEMORY_H
b1b3f49c 663 select NO_IOPORT
b4811bac 664 select VIRT_TO_BUS
1da177e4
LT
665 help
666 On the Acorn Risc-PC, Linux can support the internal IDE disk and
667 CD-ROM interface, serial and parallel port, and the floppy drive.
668
669config ARCH_SA1100
670 bool "SA1100-based"
89c52ed4 671 select ARCH_HAS_CPUFREQ
b1b3f49c
RK
672 select ARCH_MTD_XIP
673 select ARCH_REQUIRE_GPIOLIB
674 select ARCH_SPARSEMEM_ENABLE
675 select CLKDEV_LOOKUP
676 select CLKSRC_MMIO
1937f5b9 677 select CPU_FREQ
b1b3f49c 678 select CPU_SA1100
3e238be2 679 select GENERIC_CLOCKEVENTS
d0ee9f40 680 select HAVE_IDE
b1b3f49c 681 select ISA
01464226 682 select NEED_MACH_GPIO_H
0cdc8b92 683 select NEED_MACH_MEMORY_H
375dec92 684 select SPARSE_IRQ
f999b8bd
MM
685 help
686 Support for StrongARM 11x0 based boards.
1da177e4 687
b130d5c2
KK
688config ARCH_S3C24XX
689 bool "Samsung S3C24XX SoCs"
9d56c02a 690 select ARCH_HAS_CPUFREQ
5cfc8ee0 691 select ARCH_USES_GETTIMEOFFSET
b1b3f49c 692 select CLKDEV_LOOKUP
b1b3f49c 693 select HAVE_CLK
20676c15 694 select HAVE_S3C2410_I2C if I2C
b130d5c2 695 select HAVE_S3C2410_WATCHDOG if WATCHDOG
b1b3f49c 696 select HAVE_S3C_RTC if RTC_CLASS
01464226 697 select NEED_MACH_GPIO_H
c334bc15 698 select NEED_MACH_IO_H
1da177e4 699 help
b130d5c2
KK
700 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
701 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
702 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
703 Samsung SMDK2410 development board (and derivatives).
63b1f51b 704
a08ab637
BD
705config ARCH_S3C64XX
706 bool "Samsung S3C64XX"
b1b3f49c
RK
707 select ARCH_HAS_CPUFREQ
708 select ARCH_REQUIRE_GPIOLIB
709 select ARCH_USES_GETTIMEOFFSET
89f0ce72 710 select ARM_VIC
b1b3f49c
RK
711 select CLKDEV_LOOKUP
712 select CPU_V6
a08ab637 713 select HAVE_CLK
b1b3f49c
RK
714 select HAVE_S3C2410_I2C if I2C
715 select HAVE_S3C2410_WATCHDOG if WATCHDOG
6700397a 716 select HAVE_TCM
b1b3f49c 717 select NEED_MACH_GPIO_H
89f0ce72 718 select NO_IOPORT
b1b3f49c
RK
719 select PLAT_SAMSUNG
720 select S3C_DEV_NAND
721 select S3C_GPIO_TRACK
89f0ce72 722 select SAMSUNG_CLKSRC
b1b3f49c 723 select SAMSUNG_GPIOLIB_4BIT
89f0ce72 724 select SAMSUNG_IRQ_VIC_TIMER
89f0ce72 725 select USB_ARCH_HAS_OHCI
a08ab637
BD
726 help
727 Samsung S3C64XX series based systems
728
49b7a491
KK
729config ARCH_S5P64X0
730 bool "Samsung S5P6440 S5P6450"
d8b22d25 731 select CLKDEV_LOOKUP
0665ccc4 732 select CLKSRC_MMIO
b1b3f49c 733 select CPU_V6
9e65bbf2 734 select GENERIC_CLOCKEVENTS
b1b3f49c 735 select HAVE_CLK
20676c15 736 select HAVE_S3C2410_I2C if I2C
b1b3f49c 737 select HAVE_S3C2410_WATCHDOG if WATCHDOG
754961a8 738 select HAVE_S3C_RTC if RTC_CLASS
01464226 739 select NEED_MACH_GPIO_H
c4ffccdd 740 help
49b7a491
KK
741 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
742 SMDK6450.
c4ffccdd 743
acc84707
MS
744config ARCH_S5PC100
745 bool "Samsung S5PC100"
b1b3f49c 746 select ARCH_USES_GETTIMEOFFSET
29e8eb0f 747 select CLKDEV_LOOKUP
5a7652f2 748 select CPU_V7
b1b3f49c 749 select HAVE_CLK
20676c15 750 select HAVE_S3C2410_I2C if I2C
c39d8d55 751 select HAVE_S3C2410_WATCHDOG if WATCHDOG
b1b3f49c 752 select HAVE_S3C_RTC if RTC_CLASS
01464226 753 select NEED_MACH_GPIO_H
5a7652f2 754 help
acc84707 755 Samsung S5PC100 series based systems
5a7652f2 756
170f4e42
KK
757config ARCH_S5PV210
758 bool "Samsung S5PV210/S5PC110"
b1b3f49c 759 select ARCH_HAS_CPUFREQ
0f75a96b 760 select ARCH_HAS_HOLES_MEMORYMODEL
b1b3f49c 761 select ARCH_SPARSEMEM_ENABLE
b2a9dd46 762 select CLKDEV_LOOKUP
0665ccc4 763 select CLKSRC_MMIO
b1b3f49c 764 select CPU_V7
9e65bbf2 765 select GENERIC_CLOCKEVENTS
b1b3f49c 766 select HAVE_CLK
20676c15 767 select HAVE_S3C2410_I2C if I2C
c39d8d55 768 select HAVE_S3C2410_WATCHDOG if WATCHDOG
b1b3f49c 769 select HAVE_S3C_RTC if RTC_CLASS
01464226 770 select NEED_MACH_GPIO_H
0cdc8b92 771 select NEED_MACH_MEMORY_H
170f4e42
KK
772 help
773 Samsung S5PV210/S5PC110 series based systems
774
83014579 775config ARCH_EXYNOS
93e22567 776 bool "Samsung EXYNOS"
b1b3f49c 777 select ARCH_HAS_CPUFREQ
0f75a96b 778 select ARCH_HAS_HOLES_MEMORYMODEL
b1b3f49c 779 select ARCH_SPARSEMEM_ENABLE
badc4f2d 780 select CLKDEV_LOOKUP
b1b3f49c 781 select CPU_V7
cc0e72b8 782 select GENERIC_CLOCKEVENTS
b1b3f49c 783 select HAVE_CLK
20676c15 784 select HAVE_S3C2410_I2C if I2C
c39d8d55 785 select HAVE_S3C2410_WATCHDOG if WATCHDOG
b1b3f49c 786 select HAVE_S3C_RTC if RTC_CLASS
01464226 787 select NEED_MACH_GPIO_H
0cdc8b92 788 select NEED_MACH_MEMORY_H
cc0e72b8 789 help
83014579 790 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
cc0e72b8 791
1da177e4
LT
792config ARCH_SHARK
793 bool "Shark"
b1b3f49c 794 select ARCH_USES_GETTIMEOFFSET
c750815e 795 select CPU_SA110
f7e68bbf
RK
796 select ISA
797 select ISA_DMA
0cdc8b92 798 select NEED_MACH_MEMORY_H
b1b3f49c 799 select PCI
b4811bac 800 select VIRT_TO_BUS
b1b3f49c 801 select ZONE_DMA
f999b8bd
MM
802 help
803 Support for the StrongARM based Digital DNARD machine, also known
804 as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4 805
d98aac75
LW
806config ARCH_U300
807 bool "ST-Ericsson U300 Series"
808 depends on MMU
b1b3f49c 809 select ARCH_REQUIRE_GPIOLIB
d98aac75 810 select ARM_AMBA
5485c1e0 811 select ARM_PATCH_PHYS_VIRT
d98aac75 812 select ARM_VIC
6d803ba7 813 select CLKDEV_LOOKUP
b1b3f49c 814 select CLKSRC_MMIO
50667d63 815 select COMMON_CLK
b1b3f49c
RK
816 select CPU_ARM926T
817 select GENERIC_CLOCKEVENTS
b1b3f49c 818 select HAVE_TCM
a4fe292f 819 select SPARSE_IRQ
d98aac75
LW
820 help
821 Support for ST-Ericsson U300 series mobile platforms.
822
7c6337e2
KH
823config ARCH_DAVINCI
824 bool "TI DaVinci"
b1b3f49c 825 select ARCH_HAS_HOLES_MEMORYMODEL
dce1115b 826 select ARCH_REQUIRE_GPIOLIB
6d803ba7 827 select CLKDEV_LOOKUP
20e9969b 828 select GENERIC_ALLOCATOR
b1b3f49c 829 select GENERIC_CLOCKEVENTS
dc7ad3b3 830 select GENERIC_IRQ_CHIP
b1b3f49c 831 select HAVE_IDE
01464226 832 select NEED_MACH_GPIO_H
689e331f 833 select USE_OF
b1b3f49c 834 select ZONE_DMA
7c6337e2
KH
835 help
836 Support for TI's DaVinci platform.
837
a0694861
TL
838config ARCH_OMAP1
839 bool "TI OMAP1"
00a36698 840 depends on MMU
89c52ed4 841 select ARCH_HAS_CPUFREQ
9af915da 842 select ARCH_HAS_HOLES_MEMORYMODEL
a0694861 843 select ARCH_OMAP
21f47fbc 844 select ARCH_REQUIRE_GPIOLIB
b1b3f49c 845 select CLKDEV_LOOKUP
d6e15d78 846 select CLKSRC_MMIO
b1b3f49c 847 select GENERIC_CLOCKEVENTS
a0694861 848 select GENERIC_IRQ_CHIP
e9a91de7 849 select HAVE_CLK
a0694861
TL
850 select HAVE_IDE
851 select IRQ_DOMAIN
852 select NEED_MACH_IO_H if PCCARD
853 select NEED_MACH_MEMORY_H
21f47fbc 854 help
a0694861 855 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
02c981c0 856
1da177e4
LT
857endchoice
858
387798b3
RH
859menu "Multiple platform selection"
860 depends on ARCH_MULTIPLATFORM
861
862comment "CPU Core family selection"
863
864config ARCH_MULTI_V4
865 bool "ARMv4 based platforms (FA526, StrongARM)"
387798b3 866 depends on !ARCH_MULTI_V6_V7
b1b3f49c 867 select ARCH_MULTI_V4_V5
387798b3
RH
868
869config ARCH_MULTI_V4T
870 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
387798b3 871 depends on !ARCH_MULTI_V6_V7
b1b3f49c 872 select ARCH_MULTI_V4_V5
387798b3
RH
873
874config ARCH_MULTI_V5
875 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
387798b3 876 depends on !ARCH_MULTI_V6_V7
b1b3f49c 877 select ARCH_MULTI_V4_V5
387798b3
RH
878
879config ARCH_MULTI_V4_V5
880 bool
881
882config ARCH_MULTI_V6
8dda05cc 883 bool "ARMv6 based platforms (ARM11)"
387798b3 884 select ARCH_MULTI_V6_V7
b1b3f49c 885 select CPU_V6
387798b3
RH
886
887config ARCH_MULTI_V7
8dda05cc 888 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
387798b3
RH
889 default y
890 select ARCH_MULTI_V6_V7
b1b3f49c
RK
891 select ARCH_VEXPRESS
892 select CPU_V7
387798b3
RH
893
894config ARCH_MULTI_V6_V7
895 bool
896
897config ARCH_MULTI_CPU_AUTO
898 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
899 select ARCH_MULTI_V5
900
901endmenu
902
ccf50e23
RK
903#
904# This is sorted alphabetically by mach-* pathname. However, plat-*
905# Kconfigs may be included either alphabetically (according to the
906# plat- suffix) or along side the corresponding mach-* source.
907#
3e93a22b
GC
908source "arch/arm/mach-mvebu/Kconfig"
909
95b8f20f
RK
910source "arch/arm/mach-at91/Kconfig"
911
8ac49e04
CD
912source "arch/arm/mach-bcm/Kconfig"
913
f1ac922d
SW
914source "arch/arm/mach-bcm2835/Kconfig"
915
1da177e4
LT
916source "arch/arm/mach-clps711x/Kconfig"
917
d94f944e
AV
918source "arch/arm/mach-cns3xxx/Kconfig"
919
95b8f20f
RK
920source "arch/arm/mach-davinci/Kconfig"
921
922source "arch/arm/mach-dove/Kconfig"
923
e7736d47
LB
924source "arch/arm/mach-ep93xx/Kconfig"
925
1da177e4
LT
926source "arch/arm/mach-footbridge/Kconfig"
927
59d3a193
PZ
928source "arch/arm/mach-gemini/Kconfig"
929
387798b3
RH
930source "arch/arm/mach-highbank/Kconfig"
931
1da177e4
LT
932source "arch/arm/mach-integrator/Kconfig"
933
3f7e5815
LB
934source "arch/arm/mach-iop32x/Kconfig"
935
936source "arch/arm/mach-iop33x/Kconfig"
1da177e4 937
285f5fa7
DW
938source "arch/arm/mach-iop13xx/Kconfig"
939
1da177e4
LT
940source "arch/arm/mach-ixp4xx/Kconfig"
941
95b8f20f
RK
942source "arch/arm/mach-kirkwood/Kconfig"
943
944source "arch/arm/mach-ks8695/Kconfig"
945
95b8f20f
RK
946source "arch/arm/mach-msm/Kconfig"
947
794d15b2
SS
948source "arch/arm/mach-mv78xx0/Kconfig"
949
3995eb82 950source "arch/arm/mach-imx/Kconfig"
1da177e4 951
1d3f33d5
SG
952source "arch/arm/mach-mxs/Kconfig"
953
95b8f20f 954source "arch/arm/mach-netx/Kconfig"
49cbe786 955
95b8f20f 956source "arch/arm/mach-nomadik/Kconfig"
95b8f20f 957
d48af15e
TL
958source "arch/arm/plat-omap/Kconfig"
959
960source "arch/arm/mach-omap1/Kconfig"
1da177e4 961
1dbae815
TL
962source "arch/arm/mach-omap2/Kconfig"
963
9dd0b194 964source "arch/arm/mach-orion5x/Kconfig"
585cf175 965
387798b3
RH
966source "arch/arm/mach-picoxcell/Kconfig"
967
95b8f20f
RK
968source "arch/arm/mach-pxa/Kconfig"
969source "arch/arm/plat-pxa/Kconfig"
585cf175 970
95b8f20f
RK
971source "arch/arm/mach-mmp/Kconfig"
972
973source "arch/arm/mach-realview/Kconfig"
974
975source "arch/arm/mach-sa1100/Kconfig"
edabd38e 976
cf383678 977source "arch/arm/plat-samsung/Kconfig"
a21765a7 978
387798b3
RH
979source "arch/arm/mach-socfpga/Kconfig"
980
a7ed099f 981source "arch/arm/mach-spear/Kconfig"
a21765a7 982
85fd6d63 983source "arch/arm/mach-s3c24xx/Kconfig"
1da177e4 984
a08ab637 985if ARCH_S3C64XX
431107ea 986source "arch/arm/mach-s3c64xx/Kconfig"
a08ab637
BD
987endif
988
49b7a491 989source "arch/arm/mach-s5p64x0/Kconfig"
c4ffccdd 990
5a7652f2 991source "arch/arm/mach-s5pc100/Kconfig"
5a7652f2 992
170f4e42
KK
993source "arch/arm/mach-s5pv210/Kconfig"
994
83014579 995source "arch/arm/mach-exynos/Kconfig"
cc0e72b8 996
882d01f9 997source "arch/arm/mach-shmobile/Kconfig"
52c543f9 998
3b52634f
MR
999source "arch/arm/mach-sunxi/Kconfig"
1000
156a0997
BS
1001source "arch/arm/mach-prima2/Kconfig"
1002
c5f80065
EG
1003source "arch/arm/mach-tegra/Kconfig"
1004
95b8f20f 1005source "arch/arm/mach-u300/Kconfig"
1da177e4 1006
95b8f20f 1007source "arch/arm/mach-ux500/Kconfig"
1da177e4
LT
1008
1009source "arch/arm/mach-versatile/Kconfig"
1010
ceade897 1011source "arch/arm/mach-vexpress/Kconfig"
420c34e4 1012source "arch/arm/plat-versatile/Kconfig"
ceade897 1013
2a0ba738
MZ
1014source "arch/arm/mach-virt/Kconfig"
1015
6f35f9a9
TP
1016source "arch/arm/mach-vt8500/Kconfig"
1017
7ec80ddf 1018source "arch/arm/mach-w90x900/Kconfig"
1019
9a45eb69
JC
1020source "arch/arm/mach-zynq/Kconfig"
1021
1da177e4
LT
1022# Definitions to make life easier
1023config ARCH_ACORN
1024 bool
1025
7ae1f7ec
LB
1026config PLAT_IOP
1027 bool
469d3044 1028 select GENERIC_CLOCKEVENTS
7ae1f7ec 1029
69b02f6a
LB
1030config PLAT_ORION
1031 bool
bfe45e0b 1032 select CLKSRC_MMIO
b1b3f49c 1033 select COMMON_CLK
dc7ad3b3 1034 select GENERIC_IRQ_CHIP
278b45b0 1035 select IRQ_DOMAIN
69b02f6a 1036
abcda1dc
TP
1037config PLAT_ORION_LEGACY
1038 bool
1039 select PLAT_ORION
1040
bd5ce433
EM
1041config PLAT_PXA
1042 bool
1043
f4b8b319
RK
1044config PLAT_VERSATILE
1045 bool
1046
e3887714
RK
1047config ARM_TIMER_SP804
1048 bool
bfe45e0b 1049 select CLKSRC_MMIO
e3887714 1050
1da177e4
LT
1051source arch/arm/mm/Kconfig
1052
958cab0f
RK
1053config ARM_NR_BANKS
1054 int
1055 default 16 if ARCH_EP93XX
1056 default 8
1057
afe4b25e 1058config IWMMXT
698613b6 1059 bool "Enable iWMMXt support" if !CPU_PJ4
ef6c8445 1060 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
698613b6 1061 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
afe4b25e
LB
1062 help
1063 Enable support for iWMMXt context switching at run time if
1064 running on a CPU that supports it.
1065
1da177e4
LT
1066config XSCALE_PMU
1067 bool
bfc994b5 1068 depends on CPU_XSCALE
1da177e4
LT
1069 default y
1070
52108641 1071config MULTI_IRQ_HANDLER
1072 bool
1073 help
1074 Allow each machine to specify it's own IRQ handler at run time.
1075
3b93e7b0
HC
1076if !MMU
1077source "arch/arm/Kconfig-nommu"
1078endif
1079
f0c4b8d6
WD
1080config ARM_ERRATA_326103
1081 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1082 depends on CPU_V6
1083 help
1084 Executing a SWP instruction to read-only memory does not set bit 11
1085 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1086 treat the access as a read, preventing a COW from occurring and
1087 causing the faulting task to livelock.
1088
9cba3ccc
CM
1089config ARM_ERRATA_411920
1090 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
e399b1a4 1091 depends on CPU_V6 || CPU_V6K
9cba3ccc
CM
1092 help
1093 Invalidation of the Instruction Cache operation can
1094 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1095 It does not affect the MPCore. This option enables the ARM Ltd.
1096 recommended workaround.
1097
7ce236fc
CM
1098config ARM_ERRATA_430973
1099 bool "ARM errata: Stale prediction on replaced interworking branch"
1100 depends on CPU_V7
1101 help
1102 This option enables the workaround for the 430973 Cortex-A8
1103 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1104 interworking branch is replaced with another code sequence at the
1105 same virtual address, whether due to self-modifying code or virtual
1106 to physical address re-mapping, Cortex-A8 does not recover from the
1107 stale interworking branch prediction. This results in Cortex-A8
1108 executing the new code sequence in the incorrect ARM or Thumb state.
1109 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1110 and also flushes the branch target cache at every context switch.
1111 Note that setting specific bits in the ACTLR register may not be
1112 available in non-secure mode.
1113
855c551f
CM
1114config ARM_ERRATA_458693
1115 bool "ARM errata: Processor deadlock when a false hazard is created"
1116 depends on CPU_V7
62e4d357 1117 depends on !ARCH_MULTIPLATFORM
855c551f
CM
1118 help
1119 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1120 erratum. For very specific sequences of memory operations, it is
1121 possible for a hazard condition intended for a cache line to instead
1122 be incorrectly associated with a different cache line. This false
1123 hazard might then cause a processor deadlock. The workaround enables
1124 the L1 caching of the NEON accesses and disables the PLD instruction
1125 in the ACTLR register. Note that setting specific bits in the ACTLR
1126 register may not be available in non-secure mode.
1127
0516e464
CM
1128config ARM_ERRATA_460075
1129 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1130 depends on CPU_V7
62e4d357 1131 depends on !ARCH_MULTIPLATFORM
0516e464
CM
1132 help
1133 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1134 erratum. Any asynchronous access to the L2 cache may encounter a
1135 situation in which recent store transactions to the L2 cache are lost
1136 and overwritten with stale memory contents from external memory. The
1137 workaround disables the write-allocate mode for the L2 cache via the
1138 ACTLR register. Note that setting specific bits in the ACTLR register
1139 may not be available in non-secure mode.
1140
9f05027c
WD
1141config ARM_ERRATA_742230
1142 bool "ARM errata: DMB operation may be faulty"
1143 depends on CPU_V7 && SMP
62e4d357 1144 depends on !ARCH_MULTIPLATFORM
9f05027c
WD
1145 help
1146 This option enables the workaround for the 742230 Cortex-A9
1147 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1148 between two write operations may not ensure the correct visibility
1149 ordering of the two writes. This workaround sets a specific bit in
1150 the diagnostic register of the Cortex-A9 which causes the DMB
1151 instruction to behave as a DSB, ensuring the correct behaviour of
1152 the two writes.
1153
a672e99b
WD
1154config ARM_ERRATA_742231
1155 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1156 depends on CPU_V7 && SMP
62e4d357 1157 depends on !ARCH_MULTIPLATFORM
a672e99b
WD
1158 help
1159 This option enables the workaround for the 742231 Cortex-A9
1160 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1161 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1162 accessing some data located in the same cache line, may get corrupted
1163 data due to bad handling of the address hazard when the line gets
1164 replaced from one of the CPUs at the same time as another CPU is
1165 accessing it. This workaround sets specific bits in the diagnostic
1166 register of the Cortex-A9 which reduces the linefill issuing
1167 capabilities of the processor.
1168
9e65582a 1169config PL310_ERRATA_588369
fa0ce403 1170 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
2839e06c 1171 depends on CACHE_L2X0
9e65582a
SS
1172 help
1173 The PL310 L2 cache controller implements three types of Clean &
1174 Invalidate maintenance operations: by Physical Address
1175 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1176 They are architecturally defined to behave as the execution of a
1177 clean operation followed immediately by an invalidate operation,
1178 both performing to the same memory location. This functionality
1179 is not correctly implemented in PL310 as clean lines are not
2839e06c 1180 invalidated as a result of these operations.
cdf357f1
WD
1181
1182config ARM_ERRATA_720789
1183 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
e66dc745 1184 depends on CPU_V7
cdf357f1
WD
1185 help
1186 This option enables the workaround for the 720789 Cortex-A9 (prior to
1187 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1188 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1189 As a consequence of this erratum, some TLB entries which should be
1190 invalidated are not, resulting in an incoherency in the system page
1191 tables. The workaround changes the TLB flushing routines to invalidate
1192 entries regardless of the ASID.
475d92fc 1193
1f0090a1 1194config PL310_ERRATA_727915
fa0ce403 1195 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
1f0090a1
RK
1196 depends on CACHE_L2X0
1197 help
1198 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1199 operation (offset 0x7FC). This operation runs in background so that
1200 PL310 can handle normal accesses while it is in progress. Under very
1201 rare circumstances, due to this erratum, write data can be lost when
1202 PL310 treats a cacheable write transaction during a Clean &
1203 Invalidate by Way operation.
1204
475d92fc
WD
1205config ARM_ERRATA_743622
1206 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1207 depends on CPU_V7
62e4d357 1208 depends on !ARCH_MULTIPLATFORM
475d92fc
WD
1209 help
1210 This option enables the workaround for the 743622 Cortex-A9
efbc74ac 1211 (r2p*) erratum. Under very rare conditions, a faulty
475d92fc
WD
1212 optimisation in the Cortex-A9 Store Buffer may lead to data
1213 corruption. This workaround sets a specific bit in the diagnostic
1214 register of the Cortex-A9 which disables the Store Buffer
1215 optimisation, preventing the defect from occurring. This has no
1216 visible impact on the overall performance or power consumption of the
1217 processor.
1218
9a27c27c
WD
1219config ARM_ERRATA_751472
1220 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
ba90c516 1221 depends on CPU_V7
62e4d357 1222 depends on !ARCH_MULTIPLATFORM
9a27c27c
WD
1223 help
1224 This option enables the workaround for the 751472 Cortex-A9 (prior
1225 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1226 completion of a following broadcasted operation if the second
1227 operation is received by a CPU before the ICIALLUIS has completed,
1228 potentially leading to corrupted entries in the cache or TLB.
1229
fa0ce403
WD
1230config PL310_ERRATA_753970
1231 bool "PL310 errata: cache sync operation may be faulty"
885028e4
SK
1232 depends on CACHE_PL310
1233 help
1234 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1235
1236 Under some condition the effect of cache sync operation on
1237 the store buffer still remains when the operation completes.
1238 This means that the store buffer is always asked to drain and
1239 this prevents it from merging any further writes. The workaround
1240 is to replace the normal offset of cache sync operation (0x730)
1241 by another offset targeting an unmapped PL310 register 0x740.
1242 This has the same effect as the cache sync operation: store buffer
1243 drain and waiting for all buffers empty.
1244
fcbdc5fe
WD
1245config ARM_ERRATA_754322
1246 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1247 depends on CPU_V7
1248 help
1249 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1250 r3p*) erratum. A speculative memory access may cause a page table walk
1251 which starts prior to an ASID switch but completes afterwards. This
1252 can populate the micro-TLB with a stale entry which may be hit with
1253 the new ASID. This workaround places two dsb instructions in the mm
1254 switching code so that no page table walks can cross the ASID switch.
1255
5dab26af
WD
1256config ARM_ERRATA_754327
1257 bool "ARM errata: no automatic Store Buffer drain"
1258 depends on CPU_V7 && SMP
1259 help
1260 This option enables the workaround for the 754327 Cortex-A9 (prior to
1261 r2p0) erratum. The Store Buffer does not have any automatic draining
1262 mechanism and therefore a livelock may occur if an external agent
1263 continuously polls a memory location waiting to observe an update.
1264 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1265 written polling loops from denying visibility of updates to memory.
1266
145e10e1
CM
1267config ARM_ERRATA_364296
1268 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1269 depends on CPU_V6 && !SMP
1270 help
1271 This options enables the workaround for the 364296 ARM1136
1272 r0p2 erratum (possible cache data corruption with
1273 hit-under-miss enabled). It sets the undocumented bit 31 in
1274 the auxiliary control register and the FI bit in the control
1275 register, thus disabling hit-under-miss without putting the
1276 processor into full low interrupt latency mode. ARM11MPCore
1277 is not affected.
1278
f630c1bd
WD
1279config ARM_ERRATA_764369
1280 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1281 depends on CPU_V7 && SMP
1282 help
1283 This option enables the workaround for erratum 764369
1284 affecting Cortex-A9 MPCore with two or more processors (all
1285 current revisions). Under certain timing circumstances, a data
1286 cache line maintenance operation by MVA targeting an Inner
1287 Shareable memory region may fail to proceed up to either the
1288 Point of Coherency or to the Point of Unification of the
1289 system. This workaround adds a DSB instruction before the
1290 relevant cache maintenance functions and sets a specific bit
1291 in the diagnostic control register of the SCU.
1292
11ed0ba1
WD
1293config PL310_ERRATA_769419
1294 bool "PL310 errata: no automatic Store Buffer drain"
1295 depends on CACHE_L2X0
1296 help
1297 On revisions of the PL310 prior to r3p2, the Store Buffer does
1298 not automatically drain. This can cause normal, non-cacheable
1299 writes to be retained when the memory system is idle, leading
1300 to suboptimal I/O performance for drivers using coherent DMA.
1301 This option adds a write barrier to the cpu_idle loop so that,
1302 on systems with an outer cache, the store buffer is drained
1303 explicitly.
1304
7253b85c
SH
1305config ARM_ERRATA_775420
1306 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1307 depends on CPU_V7
1308 help
1309 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1310 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1311 operation aborts with MMU exception, it might cause the processor
1312 to deadlock. This workaround puts DSB before executing ISB if
1313 an abort may occur on cache maintenance.
1314
93dc6887
CM
1315config ARM_ERRATA_798181
1316 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1317 depends on CPU_V7 && SMP
1318 help
1319 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1320 adequately shooting down all use of the old entries. This
1321 option enables the Linux kernel workaround for this erratum
1322 which sends an IPI to the CPUs that are running the same ASID
1323 as the one being invalidated.
1324
1da177e4
LT
1325endmenu
1326
1327source "arch/arm/common/Kconfig"
1328
1da177e4
LT
1329menu "Bus support"
1330
1331config ARM_AMBA
1332 bool
1333
1334config ISA
1335 bool
1da177e4
LT
1336 help
1337 Find out whether you have ISA slots on your motherboard. ISA is the
1338 name of a bus system, i.e. the way the CPU talks to the other stuff
1339 inside your box. Other bus systems are PCI, EISA, MicroChannel
1340 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1341 newer boards don't support it. If you have ISA, say Y, otherwise N.
1342
065909b9 1343# Select ISA DMA controller support
1da177e4
LT
1344config ISA_DMA
1345 bool
065909b9 1346 select ISA_DMA_API
1da177e4 1347
065909b9 1348# Select ISA DMA interface
5cae841b
AV
1349config ISA_DMA_API
1350 bool
5cae841b 1351
1da177e4 1352config PCI
0b05da72 1353 bool "PCI support" if MIGHT_HAVE_PCI
1da177e4
LT
1354 help
1355 Find out whether you have a PCI motherboard. PCI is the name of a
1356 bus system, i.e. the way the CPU talks to the other stuff inside
1357 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1358 VESA. If you have PCI, say Y, otherwise N.
1359
52882173
AV
1360config PCI_DOMAINS
1361 bool
1362 depends on PCI
1363
b080ac8a
MRJ
1364config PCI_NANOENGINE
1365 bool "BSE nanoEngine PCI support"
1366 depends on SA1100_NANOENGINE
1367 help
1368 Enable PCI on the BSE nanoEngine board.
1369
36e23590
MW
1370config PCI_SYSCALL
1371 def_bool PCI
1372
1da177e4
LT
1373# Select the host bridge type
1374config PCI_HOST_VIA82C505
1375 bool
1376 depends on PCI && ARCH_SHARK
1377 default y
1378
a0113a99
MR
1379config PCI_HOST_ITE8152
1380 bool
1381 depends on PCI && MACH_ARMCORE
1382 default y
1383 select DMABOUNCE
1384
1da177e4
LT
1385source "drivers/pci/Kconfig"
1386
1387source "drivers/pcmcia/Kconfig"
1388
1389endmenu
1390
1391menu "Kernel Features"
1392
3b55658a
DM
1393config HAVE_SMP
1394 bool
1395 help
1396 This option should be selected by machines which have an SMP-
1397 capable CPU.
1398
1399 The only effect of this option is to make the SMP-related
1400 options available to the user for configuration.
1401
1da177e4 1402config SMP
bb2d8130 1403 bool "Symmetric Multi-Processing"
fbb4ddac 1404 depends on CPU_V6K || CPU_V7
bc28248e 1405 depends on GENERIC_CLOCKEVENTS
3b55658a 1406 depends on HAVE_SMP
9934ebb8 1407 depends on MMU
b1b3f49c 1408 select USE_GENERIC_SMP_HELPERS
1da177e4
LT
1409 help
1410 This enables support for systems with more than one CPU. If you have
1411 a system with only one CPU, like most personal computers, say N. If
1412 you have a system with more than one CPU, say Y.
1413
1414 If you say N here, the kernel will run on single and multiprocessor
1415 machines, but will use only one CPU of a multiprocessor machine. If
1416 you say Y here, the kernel will run on many, but not all, single
1417 processor machines. On a single processor machine, the kernel will
1418 run faster if you say N here.
1419
395cf969 1420 See also <file:Documentation/x86/i386/IO-APIC.txt>,
1da177e4 1421 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
50a23e6e 1422 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
1da177e4
LT
1423
1424 If you don't know what to do here, say N.
1425
f00ec48f
RK
1426config SMP_ON_UP
1427 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
4d2692a7 1428 depends on SMP && !XIP_KERNEL
f00ec48f
RK
1429 default y
1430 help
1431 SMP kernels contain instructions which fail on non-SMP processors.
1432 Enabling this option allows the kernel to modify itself to make
1433 these instructions safe. Disabling it allows about 1K of space
1434 savings.
1435
1436 If you don't know what to do here, say Y.
1437
c9018aab
VG
1438config ARM_CPU_TOPOLOGY
1439 bool "Support cpu topology definition"
1440 depends on SMP && CPU_V7
1441 default y
1442 help
1443 Support ARM cpu topology definition. The MPIDR register defines
1444 affinity between processors which is then used to describe the cpu
1445 topology of an ARM System.
1446
1447config SCHED_MC
1448 bool "Multi-core scheduler support"
1449 depends on ARM_CPU_TOPOLOGY
1450 help
1451 Multi-core scheduler support improves the CPU scheduler's decision
1452 making when dealing with multi-core CPU chips at a cost of slightly
1453 increased overhead in some places. If unsure say N here.
1454
1455config SCHED_SMT
1456 bool "SMT scheduler support"
1457 depends on ARM_CPU_TOPOLOGY
1458 help
1459 Improves the CPU scheduler's decision making when dealing with
1460 MultiThreading at a cost of slightly increased overhead in some
1461 places. If unsure say N here.
1462
a8cbcd92
RK
1463config HAVE_ARM_SCU
1464 bool
a8cbcd92
RK
1465 help
1466 This option enables support for the ARM system coherency unit
1467
8a4da6e3 1468config HAVE_ARM_ARCH_TIMER
022c03a2
MZ
1469 bool "Architected timer support"
1470 depends on CPU_V7
8a4da6e3 1471 select ARM_ARCH_TIMER
022c03a2
MZ
1472 help
1473 This option enables support for the ARM architected timer
1474
f32f4ce2
RK
1475config HAVE_ARM_TWD
1476 bool
1477 depends on SMP
da4a686a 1478 select CLKSRC_OF if OF
f32f4ce2
RK
1479 help
1480 This options enables support for the ARM timer and watchdog unit
1481
8d5796d2
LB
1482choice
1483 prompt "Memory split"
1484 default VMSPLIT_3G
1485 help
1486 Select the desired split between kernel and user memory.
1487
1488 If you are not absolutely sure what you are doing, leave this
1489 option alone!
1490
1491 config VMSPLIT_3G
1492 bool "3G/1G user/kernel split"
1493 config VMSPLIT_2G
1494 bool "2G/2G user/kernel split"
1495 config VMSPLIT_1G
1496 bool "1G/3G user/kernel split"
1497endchoice
1498
1499config PAGE_OFFSET
1500 hex
1501 default 0x40000000 if VMSPLIT_1G
1502 default 0x80000000 if VMSPLIT_2G
1503 default 0xC0000000
1504
1da177e4
LT
1505config NR_CPUS
1506 int "Maximum number of CPUs (2-32)"
1507 range 2 32
1508 depends on SMP
1509 default "4"
1510
a054a811 1511config HOTPLUG_CPU
00b7dede
RK
1512 bool "Support for hot-pluggable CPUs"
1513 depends on SMP && HOTPLUG
a054a811
RK
1514 help
1515 Say Y here to experiment with turning CPUs off and on. CPUs
1516 can be controlled through /sys/devices/system/cpu.
1517
2bdd424f
WD
1518config ARM_PSCI
1519 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1520 depends on CPU_V7
1521 help
1522 Say Y here if you want Linux to communicate with system firmware
1523 implementing the PSCI specification for CPU-centric power
1524 management operations described in ARM document number ARM DEN
1525 0022A ("Power State Coordination Interface System Software on
1526 ARM processors").
1527
37ee16ae
RK
1528config LOCAL_TIMERS
1529 bool "Use local timer interrupts"
971acb9b 1530 depends on SMP
37ee16ae
RK
1531 default y
1532 help
1533 Enable support for local timers on SMP platforms, rather then the
1534 legacy IPI broadcast method. Local timers allows the system
1535 accounting to be spread across the timer interval, preventing a
1536 "thundering herd" at every timer tick.
1537
2a6ad871
MR
1538# The GPIO number here must be sorted by descending number. In case of
1539# a multiplatform kernel, we just want the highest value required by the
1540# selected platforms.
44986ab0
PDSN
1541config ARCH_NR_GPIO
1542 int
3dea19e8 1543 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
39f47d9f 1544 default 512 if SOC_OMAP5
06b851e5 1545 default 392 if ARCH_U8500
e590b91e 1546 default 288 if ARCH_VT8500 || ARCH_SUNXI
2a6ad871 1547 default 264 if MACH_H4700
44986ab0
PDSN
1548 default 0
1549 help
1550 Maximum number of GPIOs in the system.
1551
1552 If unsure, leave the default value.
1553
d45a398f 1554source kernel/Kconfig.preempt
1da177e4 1555
f8065813
RK
1556config HZ
1557 int
b130d5c2 1558 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
a73ddc61 1559 ARCH_S5PV210 || ARCH_EXYNOS4
5248c657 1560 default AT91_TIMER_HZ if ARCH_AT91
5da3e714 1561 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
f8065813
RK
1562 default 100
1563
b28748fb
RK
1564config SCHED_HRTICK
1565 def_bool HIGH_RES_TIMERS
1566
16c79651 1567config THUMB2_KERNEL
00b7dede
RK
1568 bool "Compile the kernel in Thumb-2 mode"
1569 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
16c79651
CM
1570 select AEABI
1571 select ARM_ASM_UNIFIED
89bace65 1572 select ARM_UNWIND
16c79651
CM
1573 help
1574 By enabling this option, the kernel will be compiled in
1575 Thumb-2 mode. A compiler/assembler that understand the unified
1576 ARM-Thumb syntax is needed.
1577
1578 If unsure, say N.
1579
6f685c5c
DM
1580config THUMB2_AVOID_R_ARM_THM_JUMP11
1581 bool "Work around buggy Thumb-2 short branch relocations in gas"
1582 depends on THUMB2_KERNEL && MODULES
1583 default y
1584 help
1585 Various binutils versions can resolve Thumb-2 branches to
1586 locally-defined, preemptible global symbols as short-range "b.n"
1587 branch instructions.
1588
1589 This is a problem, because there's no guarantee the final
1590 destination of the symbol, or any candidate locations for a
1591 trampoline, are within range of the branch. For this reason, the
1592 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1593 relocation in modules at all, and it makes little sense to add
1594 support.
1595
1596 The symptom is that the kernel fails with an "unsupported
1597 relocation" error when loading some modules.
1598
1599 Until fixed tools are available, passing
1600 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1601 code which hits this problem, at the cost of a bit of extra runtime
1602 stack usage in some cases.
1603
1604 The problem is described in more detail at:
1605 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1606
1607 Only Thumb-2 kernels are affected.
1608
1609 Unless you are sure your tools don't have this problem, say Y.
1610
0becb088
CM
1611config ARM_ASM_UNIFIED
1612 bool
1613
704bdda0
NP
1614config AEABI
1615 bool "Use the ARM EABI to compile the kernel"
1616 help
1617 This option allows for the kernel to be compiled using the latest
1618 ARM ABI (aka EABI). This is only useful if you are using a user
1619 space environment that is also compiled with EABI.
1620
1621 Since there are major incompatibilities between the legacy ABI and
1622 EABI, especially with regard to structure member alignment, this
1623 option also changes the kernel syscall calling convention to
1624 disambiguate both ABIs and allow for backward compatibility support
1625 (selected with CONFIG_OABI_COMPAT).
1626
1627 To use this you need GCC version 4.0.0 or later.
1628
6c90c872 1629config OABI_COMPAT
a73a3ff1 1630 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
d6f94fa0 1631 depends on AEABI && !THUMB2_KERNEL
6c90c872
NP
1632 default y
1633 help
1634 This option preserves the old syscall interface along with the
1635 new (ARM EABI) one. It also provides a compatibility layer to
1636 intercept syscalls that have structure arguments which layout
1637 in memory differs between the legacy ABI and the new ARM EABI
1638 (only for non "thumb" binaries). This option adds a tiny
1639 overhead to all syscalls and produces a slightly larger kernel.
1640 If you know you'll be using only pure EABI user space then you
1641 can say N here. If this option is not selected and you attempt
1642 to execute a legacy ABI binary then the result will be
1643 UNPREDICTABLE (in fact it can be predicted that it won't work
1644 at all). If in doubt say Y.
1645
eb33575c 1646config ARCH_HAS_HOLES_MEMORYMODEL
e80d6a24 1647 bool
e80d6a24 1648
05944d74
RK
1649config ARCH_SPARSEMEM_ENABLE
1650 bool
1651
07a2f737
RK
1652config ARCH_SPARSEMEM_DEFAULT
1653 def_bool ARCH_SPARSEMEM_ENABLE
1654
05944d74 1655config ARCH_SELECT_MEMORY_MODEL
be370302 1656 def_bool ARCH_SPARSEMEM_ENABLE
c80d79d7 1657
7b7bf499
WD
1658config HAVE_ARCH_PFN_VALID
1659 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1660
053a96ca 1661config HIGHMEM
e8db89a2
RK
1662 bool "High Memory Support"
1663 depends on MMU
053a96ca
NP
1664 help
1665 The address space of ARM processors is only 4 Gigabytes large
1666 and it has to accommodate user address space, kernel address
1667 space as well as some memory mapped IO. That means that, if you
1668 have a large amount of physical memory and/or IO, not all of the
1669 memory can be "permanently mapped" by the kernel. The physical
1670 memory that is not permanently mapped is called "high memory".
1671
1672 Depending on the selected kernel/user memory split, minimum
1673 vmalloc space and actual amount of RAM, you may not need this
1674 option which should result in a slightly faster kernel.
1675
1676 If unsure, say n.
1677
65cec8e3
RK
1678config HIGHPTE
1679 bool "Allocate 2nd-level pagetables from highmem"
1680 depends on HIGHMEM
65cec8e3 1681
1b8873a0
JI
1682config HW_PERF_EVENTS
1683 bool "Enable hardware performance counter support for perf events"
f0d1bc47 1684 depends on PERF_EVENTS
1b8873a0
JI
1685 default y
1686 help
1687 Enable hardware performance counter support for perf events. If
1688 disabled, perf events will use software events only.
1689
3f22ab27
DH
1690source "mm/Kconfig"
1691
c1b2d970
MD
1692config FORCE_MAX_ZONEORDER
1693 int "Maximum zone order" if ARCH_SHMOBILE
1694 range 11 64 if ARCH_SHMOBILE
898f08e1 1695 default "12" if SOC_AM33XX
c1b2d970
MD
1696 default "9" if SA1111
1697 default "11"
1698 help
1699 The kernel memory allocator divides physically contiguous memory
1700 blocks into "zones", where each zone is a power of two number of
1701 pages. This option selects the largest power of two that the kernel
1702 keeps in the memory allocator. If you need to allocate very large
1703 blocks of physically contiguous memory, then you may need to
1704 increase this value.
1705
1706 This config option is actually maximum order plus one. For example,
1707 a value of 11 means that the largest free memory block is 2^10 pages.
1708
1da177e4
LT
1709config ALIGNMENT_TRAP
1710 bool
f12d0d7c 1711 depends on CPU_CP15_MMU
1da177e4 1712 default y if !ARCH_EBSA110
e119bfff 1713 select HAVE_PROC_CPU if PROC_FS
1da177e4 1714 help
84eb8d06 1715 ARM processors cannot fetch/store information which is not
1da177e4
LT
1716 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1717 address divisible by 4. On 32-bit ARM processors, these non-aligned
1718 fetch/store instructions will be emulated in software if you say
1719 here, which has a severe performance impact. This is necessary for
1720 correct operation of some network protocols. With an IP-only
1721 configuration it is safe to say N, otherwise say Y.
1722
39ec58f3 1723config UACCESS_WITH_MEMCPY
38ef2ad5
LW
1724 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1725 depends on MMU
39ec58f3
LB
1726 default y if CPU_FEROCEON
1727 help
1728 Implement faster copy_to_user and clear_user methods for CPU
1729 cores where a 8-word STM instruction give significantly higher
1730 memory write throughput than a sequence of individual 32bit stores.
1731
1732 A possible side effect is a slight increase in scheduling latency
1733 between threads sharing the same address space if they invoke
1734 such copy operations with large buffers.
1735
1736 However, if the CPU data cache is using a write-allocate mode,
1737 this option is unlikely to provide any performance gain.
1738
70c70d97
NP
1739config SECCOMP
1740 bool
1741 prompt "Enable seccomp to safely compute untrusted bytecode"
1742 ---help---
1743 This kernel feature is useful for number crunching applications
1744 that may need to compute untrusted bytecode during their
1745 execution. By using pipes or other transports made available to
1746 the process as file descriptors supporting the read/write
1747 syscalls, it's possible to isolate those applications in
1748 their own address space using seccomp. Once seccomp is
1749 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1750 and the task is only allowed to execute a few safe syscalls
1751 defined by each seccomp mode.
1752
c743f380
NP
1753config CC_STACKPROTECTOR
1754 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1755 help
1756 This option turns on the -fstack-protector GCC feature. This
1757 feature puts, at the beginning of functions, a canary value on
1758 the stack just before the return address, and validates
1759 the value just before actually returning. Stack based buffer
1760 overflows (that need to overwrite this return address) now also
1761 overwrite the canary, which gets detected and the attack is then
1762 neutralized via a kernel panic.
1763 This feature requires gcc version 4.2 or above.
1764
eff8d644
SS
1765config XEN_DOM0
1766 def_bool y
1767 depends on XEN
1768
1769config XEN
1770 bool "Xen guest support on ARM (EXPERIMENTAL)"
85323a99 1771 depends on ARM && AEABI && OF
f880b67d 1772 depends on CPU_V7 && !CPU_V6
85323a99 1773 depends on !GENERIC_ATOMIC64
eff8d644
SS
1774 help
1775 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1776
1da177e4
LT
1777endmenu
1778
1779menu "Boot options"
1780
9eb8f674
GL
1781config USE_OF
1782 bool "Flattened Device Tree support"
b1b3f49c 1783 select IRQ_DOMAIN
9eb8f674
GL
1784 select OF
1785 select OF_EARLY_FLATTREE
1786 help
1787 Include support for flattened device tree machine descriptions.
1788
bd51e2f5
NP
1789config ATAGS
1790 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1791 default y
1792 help
1793 This is the traditional way of passing data to the kernel at boot
1794 time. If you are solely relying on the flattened device tree (or
1795 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1796 to remove ATAGS support from your kernel binary. If unsure,
1797 leave this to y.
1798
1799config DEPRECATED_PARAM_STRUCT
1800 bool "Provide old way to pass kernel parameters"
1801 depends on ATAGS
1802 help
1803 This was deprecated in 2001 and announced to live on for 5 years.
1804 Some old boot loaders still use this way.
1805
1da177e4
LT
1806# Compressed boot loader in ROM. Yes, we really want to ask about
1807# TEXT and BSS so we preserve their values in the config files.
1808config ZBOOT_ROM_TEXT
1809 hex "Compressed ROM boot loader base address"
1810 default "0"
1811 help
1812 The physical address at which the ROM-able zImage is to be
1813 placed in the target. Platforms which normally make use of
1814 ROM-able zImage formats normally set this to a suitable
1815 value in their defconfig file.
1816
1817 If ZBOOT_ROM is not enabled, this has no effect.
1818
1819config ZBOOT_ROM_BSS
1820 hex "Compressed ROM boot loader BSS address"
1821 default "0"
1822 help
f8c440b2
DF
1823 The base address of an area of read/write memory in the target
1824 for the ROM-able zImage which must be available while the
1825 decompressor is running. It must be large enough to hold the
1826 entire decompressed kernel plus an additional 128 KiB.
1827 Platforms which normally make use of ROM-able zImage formats
1828 normally set this to a suitable value in their defconfig file.
1da177e4
LT
1829
1830 If ZBOOT_ROM is not enabled, this has no effect.
1831
1832config ZBOOT_ROM
1833 bool "Compressed boot loader in ROM/flash"
1834 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1835 help
1836 Say Y here if you intend to execute your compressed kernel image
1837 (zImage) directly from ROM or flash. If unsure, say N.
1838
090ab3ff
SH
1839choice
1840 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
d6f94fa0 1841 depends on ZBOOT_ROM && ARCH_SH7372
090ab3ff
SH
1842 default ZBOOT_ROM_NONE
1843 help
1844 Include experimental SD/MMC loading code in the ROM-able zImage.
59bf8964 1845 With this enabled it is possible to write the ROM-able zImage
090ab3ff
SH
1846 kernel image to an MMC or SD card and boot the kernel straight
1847 from the reset vector. At reset the processor Mask ROM will load
59bf8964 1848 the first part of the ROM-able zImage which in turn loads the
090ab3ff
SH
1849 rest the kernel image to RAM.
1850
1851config ZBOOT_ROM_NONE
1852 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1853 help
1854 Do not load image from SD or MMC
1855
f45b1149
SH
1856config ZBOOT_ROM_MMCIF
1857 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
f45b1149 1858 help
090ab3ff
SH
1859 Load image from MMCIF hardware block.
1860
1861config ZBOOT_ROM_SH_MOBILE_SDHI
1862 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1863 help
1864 Load image from SDHI hardware block
1865
1866endchoice
f45b1149 1867
e2a6a3aa
JB
1868config ARM_APPENDED_DTB
1869 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
d6f94fa0 1870 depends on OF && !ZBOOT_ROM
e2a6a3aa
JB
1871 help
1872 With this option, the boot code will look for a device tree binary
1873 (DTB) appended to zImage
1874 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1875
1876 This is meant as a backward compatibility convenience for those
1877 systems with a bootloader that can't be upgraded to accommodate
1878 the documented boot protocol using a device tree.
1879
1880 Beware that there is very little in terms of protection against
1881 this option being confused by leftover garbage in memory that might
1882 look like a DTB header after a reboot if no actual DTB is appended
1883 to zImage. Do not leave this option active in a production kernel
1884 if you don't intend to always append a DTB. Proper passing of the
1885 location into r2 of a bootloader provided DTB is always preferable
1886 to this option.
1887
b90b9a38
NP
1888config ARM_ATAG_DTB_COMPAT
1889 bool "Supplement the appended DTB with traditional ATAG information"
1890 depends on ARM_APPENDED_DTB
1891 help
1892 Some old bootloaders can't be updated to a DTB capable one, yet
1893 they provide ATAGs with memory configuration, the ramdisk address,
1894 the kernel cmdline string, etc. Such information is dynamically
1895 provided by the bootloader and can't always be stored in a static
1896 DTB. To allow a device tree enabled kernel to be used with such
1897 bootloaders, this option allows zImage to extract the information
1898 from the ATAG list and store it at run time into the appended DTB.
1899
d0f34a11
GR
1900choice
1901 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1902 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1903
1904config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1905 bool "Use bootloader kernel arguments if available"
1906 help
1907 Uses the command-line options passed by the boot loader instead of
1908 the device tree bootargs property. If the boot loader doesn't provide
1909 any, the device tree bootargs property will be used.
1910
1911config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1912 bool "Extend with bootloader kernel arguments"
1913 help
1914 The command-line arguments provided by the boot loader will be
1915 appended to the the device tree bootargs property.
1916
1917endchoice
1918
1da177e4
LT
1919config CMDLINE
1920 string "Default kernel command string"
1921 default ""
1922 help
1923 On some architectures (EBSA110 and CATS), there is currently no way
1924 for the boot loader to pass arguments to the kernel. For these
1925 architectures, you should supply some command-line options at build
1926 time by entering them here. As a minimum, you should specify the
1927 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1928
4394c124
VB
1929choice
1930 prompt "Kernel command line type" if CMDLINE != ""
1931 default CMDLINE_FROM_BOOTLOADER
bd51e2f5 1932 depends on ATAGS
4394c124
VB
1933
1934config CMDLINE_FROM_BOOTLOADER
1935 bool "Use bootloader kernel arguments if available"
1936 help
1937 Uses the command-line options passed by the boot loader. If
1938 the boot loader doesn't provide any, the default kernel command
1939 string provided in CMDLINE will be used.
1940
1941config CMDLINE_EXTEND
1942 bool "Extend bootloader kernel arguments"
1943 help
1944 The command-line arguments provided by the boot loader will be
1945 appended to the default kernel command string.
1946
92d2040d
AH
1947config CMDLINE_FORCE
1948 bool "Always use the default kernel command string"
92d2040d
AH
1949 help
1950 Always use the default kernel command string, even if the boot
1951 loader passes other arguments to the kernel.
1952 This is useful if you cannot or don't want to change the
1953 command-line options your boot loader passes to the kernel.
4394c124 1954endchoice
92d2040d 1955
1da177e4
LT
1956config XIP_KERNEL
1957 bool "Kernel Execute-In-Place from ROM"
387798b3 1958 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
1da177e4
LT
1959 help
1960 Execute-In-Place allows the kernel to run from non-volatile storage
1961 directly addressable by the CPU, such as NOR flash. This saves RAM
1962 space since the text section of the kernel is not loaded from flash
1963 to RAM. Read-write sections, such as the data section and stack,
1964 are still copied to RAM. The XIP kernel is not compressed since
1965 it has to run directly from flash, so it will take more space to
1966 store it. The flash address used to link the kernel object files,
1967 and for storing it, is configuration dependent. Therefore, if you
1968 say Y here, you must know the proper physical address where to
1969 store the kernel image depending on your own flash memory usage.
1970
1971 Also note that the make target becomes "make xipImage" rather than
1972 "make zImage" or "make Image". The final kernel binary to put in
1973 ROM memory will be arch/arm/boot/xipImage.
1974
1975 If unsure, say N.
1976
1977config XIP_PHYS_ADDR
1978 hex "XIP Kernel Physical Location"
1979 depends on XIP_KERNEL
1980 default "0x00080000"
1981 help
1982 This is the physical address in your flash memory the kernel will
1983 be linked for and stored to. This address is dependent on your
1984 own flash usage.
1985
c587e4a6
RP
1986config KEXEC
1987 bool "Kexec system call (EXPERIMENTAL)"
d6f94fa0 1988 depends on (!SMP || HOTPLUG_CPU)
c587e4a6
RP
1989 help
1990 kexec is a system call that implements the ability to shutdown your
1991 current kernel, and to start another kernel. It is like a reboot
01dd2fbf 1992 but it is independent of the system firmware. And like a reboot
c587e4a6
RP
1993 you can start any kernel with it, not just Linux.
1994
1995 It is an ongoing process to be certain the hardware in a machine
1996 is properly shutdown, so do not be surprised if this code does not
1997 initially work for you. It may help to enable device hotplugging
1998 support.
1999
4cd9d6f7
RP
2000config ATAGS_PROC
2001 bool "Export atags in procfs"
bd51e2f5 2002 depends on ATAGS && KEXEC
b98d7291 2003 default y
4cd9d6f7
RP
2004 help
2005 Should the atags used to boot the kernel be exported in an "atags"
2006 file in procfs. Useful with kexec.
2007
cb5d39b3
MW
2008config CRASH_DUMP
2009 bool "Build kdump crash kernel (EXPERIMENTAL)"
cb5d39b3
MW
2010 help
2011 Generate crash dump after being started by kexec. This should
2012 be normally only set in special crash dump kernels which are
2013 loaded in the main kernel with kexec-tools into a specially
2014 reserved region and then later executed after a crash by
2015 kdump/kexec. The crash dump kernel must be compiled to a
2016 memory address not used by the main kernel
2017
2018 For more details see Documentation/kdump/kdump.txt
2019
e69edc79
EM
2020config AUTO_ZRELADDR
2021 bool "Auto calculation of the decompressed kernel image address"
2022 depends on !ZBOOT_ROM && !ARCH_U300
2023 help
2024 ZRELADDR is the physical address where the decompressed kernel
2025 image will be placed. If AUTO_ZRELADDR is selected, the address
2026 will be determined at run-time by masking the current IP with
2027 0xf8000000. This assumes the zImage being placed in the first 128MB
2028 from start of memory.
2029
1da177e4
LT
2030endmenu
2031
ac9d7efc 2032menu "CPU Power Management"
1da177e4 2033
89c52ed4 2034if ARCH_HAS_CPUFREQ
1da177e4
LT
2035source "drivers/cpufreq/Kconfig"
2036
9d56c02a
BD
2037config CPU_FREQ_S3C
2038 bool
2039 help
2040 Internal configuration node for common cpufreq on Samsung SoC
2041
2042config CPU_FREQ_S3C24XX
4a50bfe3 2043 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
d6f94fa0 2044 depends on ARCH_S3C24XX && CPU_FREQ
9d56c02a
BD
2045 select CPU_FREQ_S3C
2046 help
2047 This enables the CPUfreq driver for the Samsung S3C24XX family
2048 of CPUs.
2049
2050 For details, take a look at <file:Documentation/cpu-freq>.
2051
2052 If in doubt, say N.
2053
2054config CPU_FREQ_S3C24XX_PLL
4a50bfe3 2055 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
d6f94fa0 2056 depends on CPU_FREQ_S3C24XX
9d56c02a
BD
2057 help
2058 Compile in support for changing the PLL frequency from the
2059 S3C24XX series CPUfreq driver. The PLL takes time to settle
2060 after a frequency change, so by default it is not enabled.
2061
2062 This also means that the PLL tables for the selected CPU(s) will
2063 be built which may increase the size of the kernel image.
2064
2065config CPU_FREQ_S3C24XX_DEBUG
2066 bool "Debug CPUfreq Samsung driver core"
2067 depends on CPU_FREQ_S3C24XX
2068 help
2069 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2070
2071config CPU_FREQ_S3C24XX_IODEBUG
2072 bool "Debug CPUfreq Samsung driver IO timing"
2073 depends on CPU_FREQ_S3C24XX
2074 help
2075 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2076
e6d197a6
BD
2077config CPU_FREQ_S3C24XX_DEBUGFS
2078 bool "Export debugfs for CPUFreq"
2079 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2080 help
2081 Export status information via debugfs.
2082
1da177e4
LT
2083endif
2084
ac9d7efc
RK
2085source "drivers/cpuidle/Kconfig"
2086
2087endmenu
2088
1da177e4
LT
2089menu "Floating point emulation"
2090
2091comment "At least one emulation must be selected"
2092
2093config FPE_NWFPE
2094 bool "NWFPE math emulation"
593c252a 2095 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
1da177e4
LT
2096 ---help---
2097 Say Y to include the NWFPE floating point emulator in the kernel.
2098 This is necessary to run most binaries. Linux does not currently
2099 support floating point hardware so you need to say Y here even if
2100 your machine has an FPA or floating point co-processor podule.
2101
2102 You may say N here if you are going to load the Acorn FPEmulator
2103 early in the bootup.
2104
2105config FPE_NWFPE_XP
2106 bool "Support extended precision"
bedf142b 2107 depends on FPE_NWFPE
1da177e4
LT
2108 help
2109 Say Y to include 80-bit support in the kernel floating-point
2110 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2111 Note that gcc does not generate 80-bit operations by default,
2112 so in most cases this option only enlarges the size of the
2113 floating point emulator without any good reason.
2114
2115 You almost surely want to say N here.
2116
2117config FPE_FASTFPE
2118 bool "FastFPE math emulation (EXPERIMENTAL)"
d6f94fa0 2119 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
1da177e4
LT
2120 ---help---
2121 Say Y here to include the FAST floating point emulator in the kernel.
2122 This is an experimental much faster emulator which now also has full
2123 precision for the mantissa. It does not support any exceptions.
2124 It is very simple, and approximately 3-6 times faster than NWFPE.
2125
2126 It should be sufficient for most programs. It may be not suitable
2127 for scientific calculations, but you have to check this for yourself.
2128 If you do not feel you need a faster FP emulation you should better
2129 choose NWFPE.
2130
2131config VFP
2132 bool "VFP-format floating point maths"
e399b1a4 2133 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1da177e4
LT
2134 help
2135 Say Y to include VFP support code in the kernel. This is needed
2136 if your hardware includes a VFP unit.
2137
2138 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2139 release notes and additional status information.
2140
2141 Say N if your target does not have VFP hardware.
2142
25ebee02
CM
2143config VFPv3
2144 bool
2145 depends on VFP
2146 default y if CPU_V7
2147
b5872db4
CM
2148config NEON
2149 bool "Advanced SIMD (NEON) Extension support"
2150 depends on VFPv3 && CPU_V7
2151 help
2152 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2153 Extension.
2154
1da177e4
LT
2155endmenu
2156
2157menu "Userspace binary formats"
2158
2159source "fs/Kconfig.binfmt"
2160
2161config ARTHUR
2162 tristate "RISC OS personality"
704bdda0 2163 depends on !AEABI
1da177e4
LT
2164 help
2165 Say Y here to include the kernel code necessary if you want to run
2166 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2167 experimental; if this sounds frightening, say N and sleep in peace.
2168 You can also say M here to compile this support as a module (which
2169 will be called arthur).
2170
2171endmenu
2172
2173menu "Power management options"
2174
eceab4ac 2175source "kernel/power/Kconfig"
1da177e4 2176
f4cb5700 2177config ARCH_SUSPEND_POSSIBLE
4b1082ca 2178 depends on !ARCH_S5PC100
6a786182 2179 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
3f5d0819 2180 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
f4cb5700
JB
2181 def_bool y
2182
15e0d9e3
AB
2183config ARM_CPU_SUSPEND
2184 def_bool PM_SLEEP
2185
1da177e4
LT
2186endmenu
2187
d5950b43
SR
2188source "net/Kconfig"
2189
ac25150f 2190source "drivers/Kconfig"
1da177e4
LT
2191
2192source "fs/Kconfig"
2193
1da177e4
LT
2194source "arch/arm/Kconfig.debug"
2195
2196source "security/Kconfig"
2197
2198source "crypto/Kconfig"
2199
2200source "lib/Kconfig"
749cf76c
CD
2201
2202source "arch/arm/kvm/Kconfig"
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